Pneumatic spring.



T. J. MULLBN 6; T. F. BRENNAN.

PNEUMATIC SPRING. ILBD NOV. 19, 1909. RENEWED FEB. 24, 1912.

Patented Sept. 24, 1912.

10 SHEETS-SHEET 1.

T. J. MULLEN 35 T. F. BRENNAN. PNEUMATIC SPRING. APPLICATION FILED NGV.19 1909. RENEWED FEB. 24, I912. ,57 Patented Sept. 24, 1912.

l0 SHEETS-SHEET 2,

4mm a \0\ \\O\\\O\S Y' bnflmn 6H0 Hui-j T. J. MULLEN & T. P. BRENNAN. PNEUMATIU SPRING. APPLICATION FILED NOV. 19, 1909. RENEWED FEB. 24, 1912.

1,039,578. Patented Sept. 24, 1912.

10 SHEETSSHEET 3 T. J. MULLEN & T. F. BRENNAN.

v PNEUMATIC SPRING.

APPLICATION FILED NOV. 19 1 39,578.

,1909. RENEWED PERM, 1912.

Patented Sept. 24, 1912.-

10 SHEETS-SHEETL T. J. MULLEN 6: T. P. BRENNAN. PNEUMATIC SPRING. APPLICATION l'lLED NOV. 19, 1909. RENEWED FEB. 24, 1912.

1,039,578. Patented Sept. 24, 1912.

10 SHEETS-SHEET 5.

T. J. MULLBN & T. F. BRENNAN. PNEUMATIC SPRING.

APPLIGAIIOR FILED 110v. 19, 1909. RENEWED FEB. 24, 1912.

1,039,578. Patented Sept. 24, 1912.

10 SHLETS-SHEBT 6.

vvifucooco 4 I3 I V M MA 7 wmos. ijw mom,

T. J. MULLEN & T. F. BRENNAN. PNEUMATHYSPRING.

APPLICATION FILED NOV. 19, 1909. RENEWED IBB. 24, 1812.-

1,039,578. Patented Sept. 24, 1912.

10 SHEETS-SHEET 7.

o E /05 v T. J. MU'LLEN &: T. P. BRENNAN- PNEUMATIC SPRING. APPLIOATIQN FILED NOV. 19, 1909. RENEWED FEB. 24, 1912.

1,039,578. v Patented Sept. 24,1912.

1o SHEETSSHEET a.

T. J. MULLEN 6: T, F. BRENNAN. PNEUMATIC SPRING.

APPLICATION FILED NOV. 19, 1909. RENEWED FEB. 24,1912.

1,039,578. Patented Sepia 24, 1912.

10 SHEETS-BHBET 9.

QZ/JW c a. 4 I M War,

J. MULLEN P. BRENNAN, PNEUMATIC SPRING.

, 1909. EEHEWED 1-13.24, 1912.

APPLICATION FILED HOV.19

atentefi. Sept. 2%, N32.

10 SHEBTS-SHEET10,

Qwmmw I MM,

(1H0: new

. inthe. art to which it appertains to make and grovide an improved form of pneumatic;

snares "THOMAS J..MULLEN All!) THOMAS FJBRENNAN, {1F NE'W' ERIGHTUN, NEW YORK.

rnnuaiarr srnrne.

Specification of Letters'latent.

"Patented Sept. :24, rate.

Application filed Iiovembe- 19,1909, Serial No. 525,987. Renewed February 24, 1912. Serial No 679,769.

illo..all..wlmn it may. concern:

,iln the:.county ,of Richmond and State of iNewlYork have invented certain new and usefnl'lmprovements 111' Pneumatic Springs .and we .do herebyqdeelarathe following to affull, clear, and exact description of the .lnvention, such as will enable others skilled use the same. p This invention relates to pneumatic springs for vehicles especially designedfor .use'inautomobiles butnot limited .to such association.

object of the present inventionis to orcushion to be interposed between the running gear. and body eta vehicle with -imprved .accessories associated with .such pneumat1c bag.

. Ae'further object of the invention vis .to provide improved mountings for. a pneumatic .bag, one of which is connected with jtheboldy and the other part-of which is,

' ,conncte'd .withthe running gear with im-- provedmeansfor permitting a sliding move-i nentbetween such parts. With theseand other objects in view,.thej

.invention comprises certain novel construc tions, combinations and arrangements ofparts, as will be hereinafter fully described. and claimed.

.In the drawings :-Figure 1 is a view in side elevation of one embodiment of the PIBSGIltFiIlVGHlIlOIl shown one ,part connected with the spring of a vehicle and the other. part connected with'an axle. Fig. 2 is a longitudinal sectional view of the embodiment shown atFig. 1. Fig. 3 is ,a perspectiveview of the collar adapted to maintain the.pneumatic bag in engagement with the supporting part. Fig. his a perspective view of one of the sliding parts being the art .which is connected with the body of ithe vehicle. Fig. 5 is a perspective view of; one of the sliding parts being the part which is connected with the running gear. Figs. .6 and '7 are, respectively, beads which are .secured to the part shown at Fig. 5 to pre- :vent .accidental displacement of the parts shown at Fig. Fig. 8 is a viewin side. .elevation of a very slightly ,dilterent QmbOdi-J ment of the invention. Fig. 9'is a perspec tlve view. of the sliding part which is connected with the body of the vehicle. Fig.

10 is a perspective view of the sliding part whichis connected with the running gear of the vehicle. Fig. 11 is a view in end elevation ofthe strap employed to connect zthe sliding part shown at Figs. 9 and 10 to prevent accidental displacement thereof.

'Fig. .12 is a view in side elevation of a slightly difierent embodiment of the inven tion showing anti-friction rollers for preventing frictional engagement between the moving parts. .Fig. 13 is a view in inverted 'plan' of the sliding part shown at Fig. 12 whichis .adapted for connection with the .body. .Fig. 14 is .a fragmentary view showing the adaptation of the. device for use with a pneumatic bag of the clencher type instead of the type shown at Fig. 2. Fig. '15 is-asectional view longitudinally of the axlev of a device for mounting the pneumatic .bag below the axle. Fig. 16 is a transverse sectional view taken at right angles to the ,plane of.F ig. 15 as indicated. Fig. 17.is a perspective view of the yoke which embraces theaxle ,inthe embodiment shown at Figs.

Fig. "17. Fig. .19 is .a perspectiveview'ot the plate carried at the lower end of the yoke shown atFig. 17 and which is adapted .to engage and position the pneumatic bag. Fig. .20 is a slightly different embodiment .ofthe present invention showing anti-friction rollers in plan the same as that shown -.at.F 12 but with :a difierent arrangement. Fig. 21 is :a transverse sectional view of the box type of bag mounting. Fig. 22 is a top plan view of the embodiment shown at Fig.21. .Fig. 23 is'a view in side elevation of thelimitingbolt carried by the type of mountingshown at Figs. 21 and 22. Fig. .24 .showsthe clip through which the bolt shown .atFig. 23 slides. Fig. 25 is a view in side elevation of a type of mounting having anti-friction rollers disposed outside instead of inside the member secured to the running gear. Fig. 26 is a top plan view of the embodiment shown at Fig. 25.

Fig. 27 isa horizontal sectional view taken .carried by the side of the yoke shown at the embodiment shown at Fig. 25 which is adapted to be secured to the running gear. Fig. 29 is a .view 111 diametrlcal sectlon of an annular pneumatic bag with associate parts.

Fig. 80 is a view in top plan of the embodiment shown at Fig. 29 disconnected from the spring. Fig. 31 is a view in end elevation of the limiting stirrup used upon the embodiment shown at Fig. 29. Fig. 82 is a view in side elevation of an embodiment of the present invention adapted to be used directly under the end of a body, a single one of the devices to carry each end of the body and is secured at the lower side to the running gear. Fig. 33 is a view in section. of the embodiment shown at Fig. 32. Fig. 34. is a view of a different embodiment of the pneumatic bag mounted under the end of the body with different accessories. Fig. 35 is a view in transverse section of the bag employed in the embodiment shown at Fig. 34:. Fig. 36 is a view of the limiting link and securing washers associated with the embodiment shown at Fig. 34.

Like characters of reference designate corresponding parts throughout the several views.

As shown at Figs. 1 to 7 inclusive the bracket member 50 is adapted to be secured to the axle 51 of the vehicle by the axle being'inserted through the opening .52, or in any approved manner. The bracket 50 is provided with upstanding parallel guides 53 between which the block 54: is adapted to slide. The bracket 50 is provided with a depression 55 adapted to receive the base 56 of the pneumatic bag 57,'and a collar comprising the sections 58 and 58 is adapt-- ed to be secured upon the bracket member 50 and to maintain the pneumatic bag inposition by engaging the out-turned flanges of the base 56. The sliding block 54 is also provided with a socket 59 adapted to receive the protuberance 60 formed upon the bag 57 so that the bag is positioned between the sliding block 54: and the bracket 50 and prevented fromtilting by engagement with the depressions 55 and 59. It will thus be seen that the pneumatic bag 57 is inclosed between the sliding block 54 and bracket 50 and that as the block 5st slides relative to the bracket under the compression of the vehicle the pneumatic bag 57 is compressed against the tension of the inclosed air. To limit the movement and prevent displacement of the block 54.- beads 61 are employed having tongue and groove connection as in; dicated at 62 and further secured by bolts or rivets inserted through the hole 68. Provision for connecting the sliding block with the body is made in the plate 64 provided with holes 65 through which clips 66 extend to engage the spring 67 or other member connected directly or indirectly with the body of the vehicle.

As shown at Figs. 8 to 11 a bracket is nee n't/e employed here numbered 68 adapted to be secured to the axle similar to the device shown at Figs. 1 to 7 by having the axle inserted through the opening 52 and a slid ing block 69 is likewise employed. In this instance, however, the bracket (38 is provided with upstanding abutments 70 without guides, guides being formed as at 71 upon the sliding block 69. The bracket 68 is provided with a depression 55 and the sliding block'with a depression 59 for the purpose-of similarly receiving and positioning the pneumatic bag 57. In this embodiinent to limit the separating movement of the block 69 and bracket 68 a stirrup 72 is employed rigidly connected with the sliding block 69 as by the bolts 78 inserted into the holes 74 and passing about under the extremities 7 5 of the bracket 68. It will thus be apparent that as the block 69 and bracket 68 separate the lower extremity out the stirrup 72 will engage against the extremities 7 5 and limit the separating movement.

As shown at Figs. 12 and 18 the bracket here numbered 7 6 is provided without-out recesses 77 in which move the flanged rollers 7 8 which are mounted on the sliding block 7 9, the inturned material at the extremities of the cut-out portion 77 serving to limit the movement 01 the sliding block in both directions.

In the figures shown from 1 to 13 the pneumatic bag has been shown with a solid base adapted to be secured within the depression 55 by the removable collar 58'. It

particular form of base on the pneumatic bag as a bag of the clencher type may be employed shown at Fig. 14 as 57 with the clencher flanges 80 connected in a dove,-

tailed depression in the bracket in the usual provision is made for mounting the pneu-.

matic bag below the axle by employing the associated parts shown at Figs. 15 to 19. In this case -a yoke 82 is depended from the axle 51 by means of a block 83 rigidly secured to the axle with the yoke rigidly secured thereto or integral therewith. Over the block 83 a stirrup 84 slides having a detachable block 85 provided with guide flanges '86 seated within the depression 87 in the stirrup 84 with the guide flanges 86 upon opposite sides of the block 83 to pre vent lateral movement. At its lower extreniiity the stirrup Set is provided. with out-turned flanges 88 to which is secured a keeper shown in perspective at Fig. 19 comprising flanges 89 adapted to be secured to the flanges 88 as shown at Fig. 16 and is not necessary, however, to employ this insane sliding block 91 which is designed to pre-' yent more efiectually the possibility of bindmg the parts. Under some conditions it is found desirable to wholly inclose the pneumatic bag and for this purpose-the box type of mounting is provided shown at Fig. 21 wherein the be 95 takes the place of the brackets heretofore employed, such. box having upstanding sides 96 over which the cover member 97 is adapted to slide having downwardly extending sides 98 embracing the upstanding sides 96. To limit the upward movement of the cover 97 under the expansion of the bag inclosed therein an ear'.

99 is-secured rigidly to opposite sides of the box 95 and provided with an opening 100 through which extends a bolt 101 rigidly secured to the side'98 of the cover as shown at F 1g; 21.

As shown at Fig. 25 the bracket 102 has upstanding ends 103 curved outwardly at their upper extremities as at 10 1 and also provided with slots 105 through which extend links 106 pivoted to the block 107 as at 108 and rigidly connected with a cross bar 109 at each end having journaled thereon rollers 110 here shown as grooved and bearing and I moving upon ribs 111 formed upon the ends As shown at Figs. 29 to 31 provision is made for employing an annular pneumatic bag 57 having also an annular base 56 which is mounted in the annular groove formed in the bracket here shown as 112. The bracket 112 is substantially circular in general form and is provided centrally with an upstanding hollow socket member 113 while the sliding block 11% also circular in general plan is provided with a stud 115 adapted to reciprocate vertically within the socket member 113 a vent 116 being provided to prevent the compression of air within the socket member 113. The block 111 is provided upon opposite sides with outstanding lugs 117 to which are secured links 118 passing down and under lugs 119 outstanding from diametrically opposite sides of the bracket 56.. The link 118 at the upward movement of the block 11 1 engages under the lugs 119 and limits the upward move-.

ment of such block.

The devices illustrated and described in connection with Figs. 1 to 31 inclusive have been intended to be applied at each end of each axle, that is to say, four of the devices s necessary, howas by increasing the cured centrally as indicated. at 122 with a spring 123 supposed to be the spring under an end of the body 124:. as shown the sliding block 121 is pivoted to the-body 124-. as at 125 but in all other respects operates the same as the smaller devices heretofore described.

At the block 126 is pivotally connected at opposite ends as at 12T'with the spring 128 also supposed to be a different type of spring under the end of the body, one end being preferably connected with the spring by means of the link 128 pivoted directly to the spring at 129. The sliding block 180 in this case'is not shown as pivoted to the body'131 but is rigidly con nected therewith as at 132.

At Fig. 3 1 an embodiment is shownwhere a longitudinally extending leaf spring is employed under each corner of the body in which case a bolster 133 extends transversely of the vehicle and parallel with the axle 51 and is mounted upon the springs 13 1. In this case a pneumatic bag here numbered 135 is mounted directly upon the bolster 133 and is secured thereon by the usual. collar 58. The top oi the pneumatic bag bears directly against the under side of the body 136 and upward movement is limited by means of links 137 connected slidably with the bolster 133 and body 136, washers 138 being employed to prevent displacement of the links 137 and to prevent lateral movement of the body relative to the running gear.

From the foregoing description'of the various embodiments of the present invention it is believed that the structure and opera.

tion of the invention will be thoroughly and completely understood without a more detailed disclosure of such operation.

- W hat we claim is 1. In a device of the class described, a bracket provided with a depression, a pneumatic bag provided with a base proportioned to be positionedin the depression, a removable collar adapted to be secured to the bracket and maintain the base of the bag in the depression, and means supported upon the bag adapted for connection with a vehicle body.

2. In a device of the class described, a bracket adapted to be secured to the running gear of a vehicle and provided with a depression, a pneumatic bag provided with a base proportioned to be inserted in the depression, a removable keeper adapted to be attached to the bracket and to maintain the base of the bag in the depression, and means to support a vehicle body ant-he bag.

3. In a device ofthe class described, a bracket providedwith a depression, a pneumatic bag having a base embodying outwardly extending flanges all proportioned to be positioned in the depression, and a collar adapted to surround the bag and to be secured to the bracket and'maintain the bag with the base within the depression.

4. In a device of the class described, a

bracket adapted to be, connected with the running gear of a vehicle, andprovided with a pneumatic-bag receiving depression, and

' a removable bag-retaining collar carried by adapted to be secured to the bracket and extend inwardly beyond the lines of the depression. Y Y

.6. In a device of the class described, a member adapted to be supported by a vehicle axle and embodying a seat provided with a depression, a pneumatic bag adapted to be seated within the depression, a collar adapted to be sucured to the seat and to extend inwardly beyond the lines of the depression and maintain the pneumatic bag in such depression, means adapted to be secured to the body of a vehicle and adapted to slide relative to the member supported from the axle, and embodying a portion adapted to bear upon the top of the pneumatic bag.

In testimony whereof we affix oursignatures in presence of two witnesses.

THOMAS J. MULLEN. THOMAS F. BRENNAN. Witnesses: v

HAMMOND VAN VECHTEN, FRANfK J. SPENCER. 

